Question

HELP ASAP!!!!! If the big triangle below has an area of 20 m squared what does x equal

Answer 1

`20 = (x + 1) * 10 * 0.5 \\ = 5 * (x + 1) \\ x + 1 = 20 / 5 = 4 \\ x = 4 - 1 = 3 \\ enjoy \: it`